--- xapian-core-1.4.17/configure.ac.orig        2021-04-25 22:43:19.302353100 -0700
+++ xapian-core-1.4.17/configure.ac     2021-04-25 22:43:32.114864400 -0700
@@ -476,7 +476,7 @@
   *mingw*)
     dnl For _ftime64() on mingw we need to tell it we're happy to require
     dnl MSVCRT 6.10 or higher, which isn't too onerous a requirement it seems.
-    AC_DEFINE([__MSVCRT_VERSION__], [0x0601], [Define on mingw to the minimum msvcrt version to assume])
+    dnl AC_DEFINE([__MSVCRT_VERSION__], [0x0601], [Define on mingw to the minimum msvcrt version to assume])
     AC_DEFINE([MINGW_HAS_SECURE_API], [1], [Define on mingw to get _s suffixed "secure" functions declared in headers])
     ;;
 esac